name = "小明"
age = 21
result_one = "你好！我的名字是{}，今年我{}岁了。".format(name, age)
print(result_one)
name = "小明"
age = 21
result_two = "你好！我的名字是{1}，今年我{0}岁了。".format(age, name)
print(result_two)